Citronella outdoor mosquito repellent sticks are the natural way to repel mosquitoes outside. These sticks are powered by essential oils and have a delightful, fresh fragrance so you can keep the bugs away without keeping your family and other guests away. Our repellent is completely deet-free and contains no petroleum wax. We?çöve used a mix of essential oils including lemongrass, citronella and rosemary for a fresh incense that will clear the air. Each stick burns for approximately one hour. Each box contains 10 citronella outdoor mosquito repellent sticks. See label for warnings.